Fluid handling – Systems – Multi-way valve unit
Reexamination Certificate
2006-08-15
2006-08-15
Fox, John (Department: 3753)
Fluid handling
Systems
Multi-way valve unit
C137S625330
Reexamination Certificate
active
07089961
ABSTRACT:
A fluid energy reduction device especially for a flow control valve has a fluid inlet and a fluid outlet separated by a plurality of stacked plates in the form of a trim stack. Each plate of the stack has a plurality of rows of discrete, spaced columns that extend to the plate above in the stack. Fluid flowing through the trim stack is obstructed by the columns and is forced to divide into a plurality of subordinate flow paths. The rows of columns are staggered in such a way that fluid downstream of the first row of columns is incident directly on columns of the next row. The arrangement provides for the smooth pressure drop and energy reduction in the fluid without cavitation, noise or vibration.
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Lodge Jonathan Martin
Morton Karen Margaret
Fox John
Weir Valves & Controls UK Limited
Woodard Emhardt Moriarty McNett & Henry LLP
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